define power of a set
Question
Calculate mean deviation and standard deviation. Interpret the results so obtained of the following
frequency distribution:- 4+4+2=10
00-09………………………….6
10-19………………………….8
20-29…………………………10
30-39…………………………15
40-49…………………………25
50-59………………………....30
60-69…………………………21
70-79…………………………19
80-89…………………………14
90-99………………………….9
100-109……………………….5
Black and white coloured triangular sheets are used to make a toy as shown in the figure. Find the total area of black and white coloured sheets used for making the you
Is zero an even number?
Because by definition,'an even number is a number divisible by two',or else a number multiple of 2.That means,0/2 =0 otherwise 0*2=0.Which leads to the question,Is zero an even number?Please answer.
Find the area of a quadrilateral PQRS in which PQ=5cm,QR=12cm,RS=10cm,SP=13cm,PR=13cm
Construct an isosceles triangle whose base is 4.8cm and whose vertical angle is 80
Class 9
Nov. 18, 2017, 10:10 p.m.
Answer
What is the proof of theorem- If the angles subtended by the chords of a circle at the centre are equal, then chords are equal
D E F are the mid points of the sides bc ca ab respectively of a ∆abc,Prove that BDEF is a parallelogram whose area is half that of ∆abc and area of ∆def=1/4(area of ∆abc)
Question 7
Maths
Nov. 18, 2017, 9:46 p.m.
Answer
In Ex.4.3,7 why we divide the gap with 2 only and why we add 0.5 in right side only and subtract 0.5 in left side only